👉 Chapter 7 – Thermal Properties of Matter (MCQ’s and Short Questions)
Long QuestionsProperties of Matter – MCQ’s
- The property of the matter due to which it restores its size and shape when force ceases to act on it:
(a) Inertia
(b) Elasticity ✓
(c) Permittivity
(d) Rigidity
- The force that acts on unit area of an object and thus changes its shape or size:
(a) Stress ✓
(b) Strain
(c) Yong’s Modulus
(d) Elastic limit
- In system international, the unit of stress is:
(a) Nm-2 ✓
(b) Nm-1
(c) Nm
(d) None of above
- The ratio of change in length to the original length is:
(a) Stress
(b) Tensile strain ✓
(c) Young’s Modulus
(d) Elastic limit
- When stress is increased, the strain also goes on: (LHR 2016)
(a) Decreasing
(b) Increasing ✓
(c) Constant
(d) All of above
- The law about stress and strain is presented by:
(a) Hook ✓
(b) Newton
(c) Joule
(d) Archimedes
- According to Hooke’s law, within the elastic limit stress and strain has ————– proportion:
(a) Inverse
(b) Direct ✓
(c) Same
(d) None of above
- The ratio of tensile stress and tensile strain is:
(a) Variable
(b) Pascal’s Law
(c) non-uniform
(d) None of above ✓
- The unit of Young’s modulus is:
(a) Nm-2 ✓
(b) Nm-1
(c) Nm
(d) None of above
- The force exerted perpendicularly on unit area of an object is called:
(a) Strain
(b) Constant
(c) Pressure ✓
(d) Work
- The unit of pressure is:
(a) Nm-2
(b) Nm-1
(c) Pa
(d) Both a & c ✓
- Pressure depends upon:
(a) Density
(b) Depth
(c) Temperature
(d) Both a & b ✓
- If a body is at a depth of ‘h’ from the liquid surface of density ‘ρ’, then the pressure ‘P’ on that body is:
(a) P = w/t
(b) P = ρgV
(c) P = ρgh ✓
(d) P = F/a
- The law about pressure on the object is presented by:
(a) Joule
(b) Pascal ✓
(c) Newton
(d) Galileo
- Hydraulic press is based on: (GRW 2014)
(a) Joule’s law
(b) Pascal law ✓
(c) Newton’s law
(d) Young’s Modulus
- If pressure is exerted on a liquid, liquid transmits it:
(a) Variably
(b) Equally
(c) In all directions
(d) both b & c ✓
- Hydraulic brake works on the principle of: (GRW 2014)
(a) Hydraulic press
(b) Pascal law ✓
(c) Joule’s law
(d) Both a & b
- —————– tells about the floating and sinking of objects:
(a) Pascal’s law
(b) Newton’s law
(c) Archimedes principle ✓
(d) None of them
- Due to pressure difference on an object, an upward force acts on the object known as:
(a) Weight
(b) Buoyant force ✓
(c) Stress
(d) All of above
- Buoyant force is equal to the ———- of the liquid displaced by the object:
(a) Volume
(b) Density
(c) Weight ✓
(d) All of above
- The object will float on the liquid surface when:
(a) W > F
(b) W < F ✓
(c) W = F
(d) None of above
- The object will sink in the liquid surface when:
(a) W > F ✓
(b) W < F
(c) W = F
(d) None of above
- Submarine works on the principle of:
(a) Pascal’s law
(b) Newton’s law
(c) Archimedes principle ✓
(d) None of them
- When temperature of the gas increases, gas pressure ————–:
(a) Increases ✓
(b) Decreases
(c) Remains same
(d) None of above
- If quantity of the gas is increased in the container then gas pressure ——-:
(a) Increases ✓
(b) Decreases
(c) Remains same
(d) None of above
- According to Kinetic Molecular theory, gases exert pressure on the walls of the container due to their:
(a) Weight
(b) Mass
(c) Collisions
(d) All of above ✓
- The molecules of the matter are always remain in the state of:
(a) Rest
(b) Plasma
(c) Motion ✓
(d) Tension
- The energy possessed by the molecules of the matter is due to its motion:
(a) P.E.
(b) K.E. ✓
(c) Sound
(d) None of above
- When temperature of the matter increases, intermolecular forces ——:
(a) Increases
(b) Decreases ✓
(c) Remains same
(d) None of above
- Molecules of which state of matter have strongest attractive for
(a) Solid ✓
(b) Liquid
(c) Gasses
(d) Plasma
- How many states of mother are?
(a) 2
(b) 3
(c) 4 ✓
(d) many
- Weakest attractive forces are in
(a) solid
(b) liquid
(c) gases ✓
(d) Plasma
- Weakest attractive forces are in
(a) solid
(b) liquid
(c) gases ✓
(d) plasma
- Ionic state of matter is called (GRW 2013)
(a) gas
(b) plasma ✓
(c) liquid
(d) none of these
- Plasma is
(a) Good conductor
(b) Bad conductor
(c) Semi conductor ✓
(d) non conductor
- Unit of density (LHR 2013)
(a) kg m3
(b) kg m–2
(c) kg m–3 ✓
(d) kg m2
- Unit of pressure is (LHR 2013)
(a) Nm–2
(b) Pa
(c) Nm
(d) Both a & b ✓
- The instrument used to measure atmospheric pressure
(a) Colorimeter
(b) Hypsometer
(c) Barometer ✓
(d) None of these
- A solid object is:
(a) Not elastic below the elastic limit
(b) Elastic above the elastic limit
(c) Elastic below the elastic limit ✓
(d) None of above